01 - In a shallow dish, combine the flour, salt, black pepper, and paprika. Dredge each cube steak through the seasoned flour mixture, coating evenly, and shake off any excess. Reserve 2 tablespoons of the seasoned flour for later use.
02 - Heat the vegetable oil and 1 tablespoon of butter in a large skillet over medium-high heat. Once the butter is melted and bubbling, add the dredged cube steaks. Brown for 2 to 3 minutes per side until a golden crust forms. Transfer the steaks to a plate and set aside.
03 - Reduce the heat to medium. Add the remaining tablespoon of butter to the skillet along with the sliced onions and mushrooms. Cook, stirring occasionally, until the onions are soft and the mushrooms are deeply browned, about 6 to 8 minutes.
04 - Add the minced garlic and the reserved seasoned flour to the skillet. Stir continuously for about 1 minute to cook off the raw flour taste and coat the vegetables evenly.
05 - Slowly pour in the beef broth and Worcestershire sauce, stirring constantly and scraping up any browned bits from the bottom of the skillet. Stir in the milk and bring the mixture to a gentle simmer.
06 - Return the seared cube steaks to the skillet, nestling them down into the gravy. Cover with a lid, reduce the heat to low, and simmer for 20 minutes, or until the steaks are fork-tender and the gravy has thickened to your liking.
07 - Taste the gravy and adjust the seasoning with salt and pepper if needed. Garnish with chopped fresh parsley and serve hot alongside mashed potatoes, rice, or egg noodles.